diff --git a/etc/profile.d/cli.sh b/etc/profile.d/cli.sh
index b2a2f95..050baff 100644
--- a/etc/profile.d/cli.sh
+++ b/etc/profile.d/cli.sh
@@ -45,7 +45,7 @@ if [ "$(whoami)" != "root" ]; then
 
     # Make
     export CC="clang"
-    export CFLAGS="-ferror-limit=1 -gdwarf-4 -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-gnu-folding-constant -Wno-sign-compare -Wno-unused-parameter -Wno-unused-variable -Wno-unused-but-set-variable -Wshadow"
+    export CFLAGS="-ferror-limit=1 -gdwarf-4 -ggdb3 -O0 -std=c23 -Wall -Werror -Wextra -Wno-gnu-folding-constant -Wno-sign-compare -Wno-unused-parameter -Wno-unused-variable -Wno-unused-but-set-variable -Wshadow"
     export LDLIBS="-lcrypt -lcs50 -lm"
 
     # Node.js